Sash-lock.



O. L. II/IALLORY,`

sAsH LOCK.

APPLICATION FILED SEPT- 17.17914.

PatentedSept. 5, 1916.

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financia'.

SASH-LOK.-

' Specification of Letters 'Patenti Patenteu'sept. 5; faire?.

Application filed September 17, 1914, Serial No. 862,147.

To all whom t may concern Be it known that l, Oris L. MALLORY, a citizenof the United States, residing at Beardstown, in the county of Cass andSt-ate of lllinois, have invented a new and useful Sash-Lock; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

This invention relates to a new and useful improved sash lock.

An object of the invention is the provisionvof a sash lock soconstructed as to lock yboth sashes in closed positions, or in differentopen positions, so as to prevent the sash from being unlocked from theoutside.

In practical lields the details of construction may be subjected toalterations, falling within the scope of what is claimed.

The invention comprises further features and combination of parts, ashereinafter set forth, shown in the drawings and claimed.

In the drawings 2-Figure 1 is a view in perspective of a fragmentaryportion of a window frame and the upper and lower sashes showing theimproved lock applied. Fig. 2 is a sectional view through the windowframe and the upper sash, showing the lower sash in edge elevation andthe sash lock in plan view. Fig. 3 is an enlarged detail view of thesash lock slide removed from its guide member. Fig. 4 is a perspectiveview of the guide member.

Referring more especially to the drawings, 1 designates the usual windowframe having the conventional construction of guides 2 and 3 for theupper and lower sashes 4 and 5. Secured to the parting strip 6 of thewindow frame by means of screws 7 is a strip 8 having a series ofnotches 9. The strip 8 is provided with a metal plate 8a pressed orshaped to form notches 9a to fit the notches of the strip- 8. Carried bythe upper sash 4 and fastened thereto is a plate 10 having a series ofopenings or apertures 11. Secured to the upper right hand edge of thelower sash 5 by means of suitable screws (not shown, which are designedto pass through the openings or holes or apertures 12) is a plate 13having guide anges 14, which overlie the anges 15 of the sash lockingplate 16. rlhe guide flanges 14 are beveled as shown at 17 to engage thebeveled or inclined portion 18 of the central arched portion 19 of thesash locking plate. This sash locking plate is arched, in order tolessen the friction between the same and the upper surface of the plate13, and also in order to escape Contact with the screw heads (notshown), which are designed to be countersunken in said openings orapertures 12. The sash locking plate at one end is provided with alaterally extend` ing tongue 20, which is designed to enter any one ofthe notches 9a of the plate 8a, to hold the lower sash in adjusted openor closed positions. Also rising upwardly and projecting ina lateraldirection of the sash locking plate 16, but in a lateral direction atright angles to the tongue 20 is an elongated lug 22, designed to enterany one of the apertures or openings 11 in the plate 1() carried by theupper sash, so as to lock the two sashes relative to each other, at thesaine time the tongue 20 engages one of the notches 9a of the plate 8a,thereby holding the sashes in adjusted positions relative to the windowframe. By this construction of sash locking means, the sashes may beheld locked in open positions, sufficient to permit of .the requisiteventilation, and at the saine time prevent the intrusion of a burglar.Rising from the arch of the sash locking. plate is a thumb or hand piece24, by which the plate may be adjusted manually. When the sash lockingplate 16 is thrown or moved to lock the sash, the lug 20 engages thenotches 9a of the plate 8a.

The invention having been set forth, what is claimed as new and usefulis In a sash lock, the combination of a window frame and the upper andlower sashes, of a notched strip carried by the parting strip of theframe, a strip having a plu rality of spaced apertures carried by theinner face of one of the side rails of the upper sash and at rightangles to the notched strip, a plate secured transversely to the upperedge of the upper rail of the lower sash in a plane extending toward theapertured strip, said plate having side overhanging guide flanges, asash locking plate provided with lateral elongated side flanges engagingunder said guide flanges, whereby the locking plate may movetransversely of the upper sash, one end of said locking plate having anangular lug extending upwardly and protruding beyond the end of thelockare held in adjusted positions relative to ing plate and designed toenter any one of each other and in different positions of the theapertures 'of 'theaperturedstrip, and a frame.

laterally extending, tongue at right angles to In testimony whereof Ihave signed my 5 the lug being carried by the locking plate to name tothis specification.

engage any one of the notches of the notched 'strip7 whereby the upperand lower sashes OTIS L. MALLORY.

VGopies oi' this patent may be' obtained for ve cents each, byaddressing the Commissioner of Patents,

i Y Washington, D. C.

